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The Polylog Crypto Intelligence Brief

Morning Edition · Thursday, July 9, 2026

Summer.fi Vault Loses About $6 Million as 2026 DeFi Theft Tally Passes $840 Million

A pricing failure briefly showed a conservative vault yielding more than two million percent, allowing an instant withdrawal of user funds.

Summer.fi Vault Loses About $6 Million as 2026 DeFi Theft Tally Passes $840 Million

An exploit drained roughly $6 million from a Summer.fi lending vault on Ethereum after the vault's accounting algorithm failed and briefly displayed an annual yield of about 2,080,000 percent, Cryptonews reported. The mispricing let an atta…

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Bridge and Mint Exploits Sustain Heavy DeFi Losses

Over 3-6 months, recurring bridge proof-validation and unauthorized-mint exploits keep monthly DeFi losses elevated, including drains of deprecated contracts.